1/*	$NetBSD: output.h,v 1.28 2021/11/10 15:58:38 kre Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Kenneth Almquist.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)output.h	8.2 (Berkeley) 5/4/95
35 */
36
37#ifndef OUTPUT_INCL
38
39#include <stdarg.h>
40
41struct output {
42	char *nextc;
43	int nleft;
44	int bufsize;
45	char *buf;
46	short fd;
47	short flags;
48#ifndef SMALL
49	struct output *chain;
50#endif
51};
52
53/* flags for ->flags */
54#define OUTPUT_ERR	0x01		/* error occurred on output */
55#define OUTPUT_CLONE	0x02		/* this is a clone of another */
56
57extern struct output output;
58extern struct output errout;
59extern struct output memout;
60extern struct output *out1;
61extern struct output *out2;
62#ifdef SMALL
63#define outx out2
64#else
65extern struct output *outx;
66#endif
67
68void open_mem(char *, int, struct output *);
69void out1str(const char *);
70void out2str(const char *);
71void outstr(const char *, struct output *);
72void out2shstr(const char *);
73#ifdef SMALL
74#define outxstr out2str
75#define outxshstr out2shstr
76#else
77void outxstr(const char *);
78void outxshstr(const char *);
79#endif
80void outshstr(const char *, struct output *);
81void emptyoutbuf(struct output *);
82void flushall(void);
83void flushout(struct output *);
84void freestdout(void);
85void outfmt(struct output *, const char *, ...) __printflike(2, 3);
86void out1fmt(const char *, ...) __printflike(1, 2);
87#ifdef DEBUG
88void debugprintf(const char *, ...) __printflike(1, 2);
89#endif
90void fmtstr(char *, size_t, const char *, ...) __printflike(3, 4);
91void doformat(struct output *, const char *, va_list) __printflike(2, 0);
92int xwrite(int, char *, int);
93#ifdef SMALL
94#define xtracefdsetup(x)	do { break; } while (0)
95#define xtrace_clone(x)		do { break; } while (0)
96#define xtrace_pop()		do { break; } while (0)
97#else
98void xtracefdsetup(int);
99void xtrace_clone(int);
100void xtrace_pop(void);
101#endif
102
103#define outc(c, file)	(--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
104#define out1c(c)	outc(c, out1)
105#define out2c(c)	outc(c, out2)
106#define outxc(c)	outc(c, outx)
107
108#define clr_err(file)	((file)->flags &= ~OUTPUT_ERR)
109#define io_err(file)	((file)->flags & OUTPUT_ERR)
110
111#define OUTPUT_INCL
112#endif
113